Pretty good single player, awesome with friends, gotta love the beat-em-up rpg!
its a shame that you have to be within wireless distance to play with each other instead of actually over wi-fi, but i guess it would kinda bugger the servers or something, so fair enough. I do think the materials/scrolls concept used to make newer and better weapons/armor is cool, especially when you trade/rip off your pals with your totally awesome guile... oh wait thats oblivion.
I do think the single story mode could be a bit longer, but maybe i just went through it too bloody fast. Not my fault for being great.
Anyway, yeah if you enjoy the usual final fantasy games, or any rpg action adventure you would enjoy this game. And for those out there with real friends, who also have DS, investing is a must.